Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
    4.1 Analyte and internal standard
         4.1.1 Analyte
         4.1.2 Internal standard
    4.2 Chemicals
    4.3 Solutions of standards and internal standard
         4.3.1 Preparation of stock solutions of vinylidene
               chloride
         4.3.2 Intermediate solutions of vinylidene chloride
         4.3.3 Internal standard stock solution
         4.3.4 Intermediate internal standard solution
5 Apparatus
6 Samples
    6.1 Laboratory samples
    6.2 Preparation of test samples
         6.2.1 General
         6.2.2 Aqueous food simulants
         6.2.3 Fatty food simulant
    6.3 Preparation of blank samples
    6.4 Preparation of calibration samples
7 Procedure
8 Expression of results
   8.1 Method of calculation
        8.1.1 GC interferences
        8.1.2 Graphical determination using internal standard
        8.1.3 Graphical determination via external standardization
        8.1.4 Calculation of the concentration using a response
              factor
        8.1.5 Calculation of the specific migration
   8.2 Precision
        8.2.1 Validation
        8.2.2 Repeatability and reproducibility
        8.2.3 Detection limit
9 Confirmation
   9.1 Requirement for confirmation
   9.2 Confirmation by combined gas chromatography-mass
        spectrometry
   9.3 Confirmation by analysis on a GC column of different
        polarity
10 Test report
Annex A (normative) Method of standard addition
Annex B (normative) Manual sample injection
Bibliography